ENGINEERING THERMODYNAMICS QUIZ

The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as

Law of conservation of energy

Law of equipartition of energy

Law of degradation of energy

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the property of a system?

Enthalpy and entropy

Volume and density

Pressure and temperature

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is

30 kJ

114 kJ

54 kJ

84 kJ

TRUE ANSWER : ?
YOUR ANSWER : ?

The efficiency of Joule cycle is

None of these

Less than Carnot cycle

Greater than Carnot cycle

Equal to Carnot cycle

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following processes is irreversible process?

Adiabatic

Isothermal

Throttling

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Carnot cycle has maximum efficiency for

Reversible engine

Petrol engine

Diesel engine

Irreversible engine

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

Greater than one

Less than one

Equal to one

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

When the gas is cooled at constant pressure,

Both temperature and volume decreases

Both temperature and volume increases

Its volume increases but temperature decreases

Its temperature increases but volume decreases

TRUE ANSWER : ?
YOUR ANSWER : ?

For which of the following substances, the gas laws can be used with minimum error

Dry steam

Superheated steam

Wet steam

Saturated steam

TRUE ANSWER : ?
YOUR ANSWER : ?

Reversed joule cycle is called

Carnot cycle

Bell Coleman cycle

Brayton cycle

Rankine cycle

TRUE ANSWER : ?
YOUR ANSWER : ?

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